31.8mm Split Core Current Transformer

Split Core Current TransformerThe CTS0318 series of split core current transformers are designed for fast and easy installation. The split-core design permits non-contact AC current measurements through magnetic field induction without requiring that the primary conductor be taken offline and disconnected for current transformer installation. The CTS products offers exceptionally accurate signal transformation with low phase shift while exposed to harsh environmental operating conditions.

The emphasis on product quality results in consistent product performance from current transformer to current transformer with very low failure rates over the very large production volumes of the CTS family of products.

ModelRated Primary Current (Ampere)Notes:
CTS0318-xxxx/0.333V50A, 60A, 75A, 80A, 100A, 120A, 125A, 150A, 160A, 200A, 250A, 300A, 400A, 500A, 600Axxxx” is Rated Primary Current
mA secondary
Ratio 1:7500TVS across secondary
Rated Primary Current: 50A to 600A
  • Input Frequency: 50 to 400 HZ
  • Output: 0.333V @ rated current (Option: mA secondary output available)
  • Accuracy: ±1% from 10% to 130% of rated current
  • Phase Angle: less than 2 degrees at 50% of rated current
  • Linearity: ±1% from 10% to 130% of rated primary current
  • Insulation Voltage 600 Vac
  • Maximum Primary Voltage 5,000Vac (insulated conductor)
  • Operating temperature: -15ºC to +60ºC
  • Construction:
    • Epoxy encapsulated
    • Case: UL flame retardant rating 94V-0
  • Leads: 0.61m (2 ft.), UL 1015, twisted pair, 0.34mm2 (22AWG)
  • UL Certified (UL file #E466650)
  • RoHS Compliant
Physical Specifications:
Dimension mm (in)
82.5 (3.25)85.1 (3.35)27.0 (1.06)31.8 (1.25)31.8 (1.25)
Download CTS Data Sheet (pdf 799kb)

Many of our products can be designed and manufactured to meet the specific application requirements. For a no obligation technical evaluation, contact us with your specific performance requirements.